Mitchell Baker, chairperson, Mozilla Foundation
The Mozilla Foundation provides overall leadership of the open source foundation responsible for the Mozilla Firefox web browser and Thunderbird email client. Baker helped start the foundation and was one of the five original members of its board. She formerly served as CEO of Mozilla Corp., a wholly owned subsidiary of the foundation that works to integrate foundation projects. She's also known as the Chief Lizard Wrangler around Mozilla, and she keeps up a blog about the open source world.